The sextant is the treasured navigational device of generations of seamen and airmen. It enables position to be determined with good accuracy for ocean navigation, and it was the combination of sextant and chronometer that allowed safe navigation of the oceans for generations of seafarers.

The ICS On Board Training Record Book for Deck Cadets - Officers in charge of a Navigational Watch, 3rd Edition 2012

This book is aimed at today's navigator, where increased workload on the watchkeeper demands clear methods of working and concise instructions.

This new book looks at major casualties to illustrate the lessons that can be learned from them and sets out practical ways for those on the bridge to consider and avoid risks. Sold as a set together with Casualty Management Guidelines for £127.00

6th edition 1992, the book is damaged on the front cover.

In addition to Compass Adjusters, the book will be of invaluable assistance to Lecturers and Teachers, Candidates for Certificates of Competency as Extra Master and Master and others interested in the subject. It is the standard work and is also used in the Examination Rooms.